Hi, i absolutely understand how you feel , the shame, feeling disgusting etc etc. I still have the same feelings at times.
I have done emdr on memories that include body memories and it was hard but it did help. I dissociated a lot so we had to take it slow , it did get distressed whilst processing so we ( and still do) flash emdr where i go into the memory very briefly and when i have the body memories we stop after a minute , ground and then work thru gradually. Now if i recall one of those memories its just a memory - no body feelings , no distress etc. My t did something called a ‘body scan’ where we worked from head to toe and processed with emdr any body memories or feelings that were left.
I fully trusted my t and we did a lot of prep and had plans in place to anchor / ground me , so whilst it was hard it did help and was worth the hard work.
I am back doing emdr on some new memories and am hopeful it will be as successful. I hope you are able to find a way to make it work for you. All the best.